HERE - Inland Fisheries Ireland

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The Central and Regional <strong>Fisheries</strong> BoardsSalmon ranged in length from 4.0cm to 13.9cm (Fig. 4.6). Two age classes were represented, 0+ and 1+,which corresponded to 85% and 15% of the salmon population respectively. The average length ofsalmon at L1 was 5.4cm (Appendix 2).Lamprey were present mainly in the muddy margins of the right hand bank and they ranged in length from4.9cm to 13.6cm (Fig. 4.7).Brown trout ranged in length from 5.4cm to 26.1cm (Fig. 4.8) and were recorded across age classes 0+,1+, 2+ and 3+, representing 44%, 16%, 33% and 7% of the population respectively. Brown trout hadmean L1, L2 and L3 lengths of 6.7cm, 12.7cm and 18.2cm respectively (Appendix 1). The growth ofbrown trout in the River Martin site was categorised as slow (Appendix 1) based on a classification ofgrowth in rivers by Kennedy and Fitzmaurice (1971).200Number of fish1501005000 1 2 3 4 5 6 7 8 9 10 11 12 13 14Length (cm)Fig. 4.6. Length frequency distribution for salmon in the Martin River, July 2008 (n = 407)14
The Central and Regional <strong>Fisheries</strong> BoardsNumber of fish504030201000 1 2 3 4 5 6 7 8 9 10 11 12 13 14Length (cm)Fig. 4.7. Length frequency distribution for lamprey in the Martin River July, 2008 (n = 157)Frequency201510500 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27Length (cm)Fig. 4.8. Length frequency distribution for brown trout in the Martin River, July 2008 (n = 75)15
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HERE - Inland Fisheries Ireland

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